| Acronym |
Agency/Organization/Definition |
| IADB |
Inter-American Development Bank |
| IAEA |
International Atomic Energy Agency |
| IAF |
Inter-American Foundation |
| IANA |
Internet Assigned Numbers Authority |
| IBEC |
International Bank for Economic Cooperation |
| IBRD |
International Bank for Reconstruction and Development |
| ICAO |
International Civil Aviation Organization |
| ICC |
International Chamber of Commerce |
| ICCt |
International Criminal Court |
| ICEM |
Intergovernmental Committee for European Migration; see International Organization for Migration |
| ICFTU |
International Confederation of Free Trade Unions |
| ICJ |
International Court of Justice |
| ICM |
Intergovernmental Committee for Migration; see International Organization for Migration (IOM) |
| ICPRS |
Inter-University Consortium for Political an Social Research |
| ICRC |
International Committee of the Red Cross |
| ICRM |
International Red Cross and Red Crescent Movement |
| ICTR |
International Criminal Tribunal for Rwanda |
| ICSID |
International Center for Secretariat of Investment Disputes |
| ICTY |
International Criminal Tribunal for the former Yugoslavia |
| IDA |
International Development Association |
| IDB |
Inter-American Development Bank |
| IDB |
Islamic Development Bank |
| IEA |
International Energy Agency |
| IFAD |
International Fund for Agricultural Development |
| IFC |
International Finance Corporation |
| IFCTU |
International Federation of Christian Trade Unions |
| IFRCS |
International Federation of Red Cross and Red Crescent Societies |
| IGAD |
Inter-Governmental Authority on Development |
| IGADD |
Inter-Govermental Authority on Drought and Development |
| IGO |
Intergovernmental Organization |
| IHA |
Indian Housing Authority |
| IHO |
International Hydrographic Organization |
| IIB |
International Investment Bank |
| ILO |
International Labor Organization |
| IMCO |
Intergovernmental Maritime Consultative Organization; see International Maritime Organization (IMO) |
| IMF |
International Monetary Fund |
| IMLS |
Institute of Museum and library Services |
| IMO |
International Maritime Organization |
| INMARSAT |
International Maritime Satellite Organization |
| InOC |
Indian Ocean Commission |
| INSTRAW |
International Research and Training Institute for the Advancement of Women |
| INTELSAT |
International Telecommunications Satellite Organization |
| INTERPOL |
International Criminal Police Organization |
| Intersputnik |
International Organization of Space Communications |
| IOC |
International Olympic Organization |
| IOM |
International Organization for Migration |
| IRS |
Internal Revenue Service |
| ISO |
International Organization for Standardization |
| IT |
Information Technology |
| ITA |
International Trade Administration |
| ITU |
International Telecommunication Union |
